#3F4ACC#3F4ACC

#3F4ACC is a mid, vivid blue. Relative luminance 0.103; OKLCH L 48.4% C 0.198 H 272.7°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#3F4ACC
RGB	rgb(63, 74, 204)
HSL	hsl(235, 58%, 52%)
HSV	hsv(235, 69%, 80%)
CMYK	cmyk(69.1%, 63.7%, 0%, 20%)
CIE-LAB	lab(38.40, 38.08, -68.61)
CIE-LCH	lch(38.40, 78.47, 299.03°)
OKLab	oklab(48.43% 0.0094 -0.1981)
OKLCH	oklch(48.43% 0.198 272.7)
XYZ	xyz(15.3941, 10.3125, 58.2943)
Luminance	0.1031 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4ACC #CCC13F

analogous

#3F91CC #3F4ACC #7A3FCC

triadic

#3F4ACC #CC3F4A #4ACC3F

tetradic

#3F4ACC #CC3F91 #CCC13F #3FCC7A

square

#3F4ACC #CC3F91 #CCC13F #3FCC7A

split-complementary

#3F4ACC #CC7A3F #91CC3F

monochromatic

#1E2572 #2B35A3 #3F4ACC #6F78D9 #A0A5E6

Accessibility & contrast

On white

6.86

#3F4ACC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#3F4ACC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4ACC

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4ACC	#FFFFFF	#000000	##FFFFFF
##3F4ACC	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061D0

Deuteranopia (green-blind)

#0054CA

Tritanopia (blue-blind)

#006C84

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3f4acc;
/* rgb */ color: rgb(63, 74, 204);
/* oklch */ color: oklch(48.4% 0.198 272.7);

Tailwind

colors: {
  custom: {
    50: '#867cdd',
    500: '#3f4acc',
    950: '#000000',
  },
}

SCSS

$custom: #3f4acc;
$custom-light: #867cdd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4acc",
  "rgb": {
    "r": 63,
    "g": 74,
    "b": 204
  },
  "hsl": {
    "h": 235.319,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.4843,
    "c": 0.19832,
    "h": 272.7
  },
  "luminance": 0.10314
}

Semantic roles & 50–950 ramp

primary

#3F4ACC

secondary

#D2CD95

accent

#D547E1

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #3F4ACC

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →